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Description
Flashcards by Meg McAteer, updated more than 1 year ago
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Created by Meg McAteer
over 8 years ago
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| Question | Answer |
| Extrude | The term used when a 2D profile is pulled into a 3D shape. The term 'Add' or 'Subtract' must be used to describe the function of the extrude. |
| Revolve | A profile that is rotated around an axis. |
| Subtract | Used in conjunction with features to describe material being removed from a 3D model. |
| Assembly | Multiple components combined to create a model. |
| Fillet | A rounded edge applied to a corner. Can be applied in either the sketch or as a stand-alone feature. |
| Chamfer | A straight edge applied to a corner. Can be applied in either the sketch or as a stand-alone feature. |
| Shell | Used to remove material from the inside of a 3D model to a specifed wall thickness. It can also be used to remove a face. |
| Materials | Apply a material to a CAD model. This can be used for illustration or to conduct a CAD simulation or test. |
| Align | To align the face of a 3D model with another face. |
| Centre Axis | To align cylindrical objects, circular edges or circular faces. |
| Component | A single component part, used to create an assembly later on. |
| Mate | To join the face of a 3D model to another face. |
| CAD Library | A directory of commonly used parts. |
| Sketch | The name given to the CAD drawing feature used to create a profile. |
| Constraint | Dimension tool used to lock 2D geometry to a particular shape, size or position. |
| Add | Used in conjunction with features to describe an addition to the 3D model. |
| Profile | The name given to a 2D shape, prior to being used to make a 3D feature. |
| Radial Array | An item repeated in a circle with regular spacing. |
| Workplane | A surface where sketches can be applied. Most CAD packages will provide three (elevation, end elevation and plan), but more can be added by the user. |
| Array | A method of repeating a shape along a line, in a box or round a circle. |
| Projected Edge | To select an edge from a CAD model or feature and generate it as a new line in a sketch. |
| Fixed | To hold a 3D CAD model in a fixed point, without applying any constraints. Usually applied to the first component in an assembly. |
| Vertices | The ‘corners’ or where edges meet on a 3D object. |
| Edge | The edges of a 3D object. |
| Faces | The face of a 3D object. |
| Loft | A command where two or more profiles on workplanes that are spaced apart, are joined to create a 3D feature. |
| Irregular Fillet | A rounding of an edge, where the radius will change. |
| Linear Array | An item repeated along an edge, with regular spacing. |
| Box Array | An item repeated in a square or rectangle, with regular spacing. |
| Irregular Chamfer | The removal of an edge by a cut, where the distance changes along the length of the edge. |
| Helix | A profile that revolves around an axis, but has an offset or pitch’ distance. Often used to model threads, screws or springs. |
| Extrude Along A Path | A profile that has been extruded by following a set route or ‘path’. |
| Intersect | Two 3D CAD features that pass through one another, with the result that only the area that the two touch remains. Everything else is deleted. |
| Light Source | The source of light to illuminate a 3D CAD model and scene. |
| Reflection | A reflection in material, colour or light on the 3D CAD model or in the scene. |
| Bottom Up Modelling | Bottom up modelling is when parts are modelled then inserted and fixed in relation to other components in an assembly using mates. |
| Top Down Modelling | Top down design is an option to create new parts within assembly. Constraints are the existing geometry elements from other parts within assembly: lines, planes, surfaces, points, vertices. |
| Axis | An axis represents a line travelling in a direction. Typically these are X, Y and Z but can be combinations. |
| Datum | A key point in which dimensions, sizes and other details are taken from. |
| Sub Assembly | An assembly of components that is added to another, larger assembly. |
| Suppress | To turn a feature or command off within the modelling tree. |
| Solid Model | An object that can be viewed from any angle, geometry created within 3D space. |
| Wire Frame | A method of presenting a 3D CAD model, showing only the edges. Faces are transparent. |
| Modelling Tree | The linear hierarchy of how a 3D CAD model is created or assembled. |
| Sited Environment | An environment that represents how the 3D CAD model would look in a realistic environment. |
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